
<!-- 搜‘根据需要更改’，需要根据实际项目更改的已经列出来了 -->
<!-- 重要事项：
	1.由于阅读页截取整行的需要，请确保文本格式和本插件中的text变量所示一致，即：！！！每一行的高度要一致！！！
	  如果要加内容，例如每一章开头加上章节名:'<h1>章节名</h1>',请确保所加的内容是单行高度的整数倍！！
	2.‘仅用于计算’的样式必须和阅读页样式一致，不然显示会有问题,
	3.字体必须是偶数，否则1.5倍行距的时候会无法截取到整行
 -->

<template>
	<view style="height: 100%;">
		
		<!-- 仅用于计算（结构和样式请和阅读页一致） -->
		<view class="container hidden">
			<view class="chapter">
				章节名
			</view>
			<view id="content" class="content">
				<view class="inner-box" :style="{height: `${innerHeight}px`}">
					<view class="book-inner" id="preChapter" v-html="preChapter.text"
						:style="{fontSize: `${fontSize}px`, lineHeight: `${lineHeight*fontSize}px`}"
					>
					</view>
				</view>
			</view>
			<view class="bottom-bar">
				显示电量、页码
			</view>
		</view>
		
		<view class="container hidden">
			<view class="chapter">
				章节名
			</view>
			<view class="content">
				<view class="inner-box" :style="{height: `${innerHeight}px`}">
					<view class="book-inner" id="curChapter" v-html="curChapter.text"
						:style="{fontSize: `${fontSize}px`, lineHeight: `${lineHeight*fontSize}px`}"
					>
					</view>
				</view>
			</view>
			<view class="bottom-bar">
				显示电量、页码
			</view>
		</view>
		
		<view class="container hidden">
			<view class="chapter">
				章节名
			</view>
			<view class="content">
				<view class="inner-box" :style="{height: `${innerHeight}px`}">
					<view class="book-inner" id="nextChapter" v-html="nextChapter.text"
						:style="{fontSize: `${fontSize}px`, lineHeight: `${lineHeight*fontSize}px`}"
					>
					</view>
				</view>
			</view>
			<view class="bottom-bar">
				显示电量、页码
			</view>
		</view>
		
		<!-- ************************** -->
		<!--     根据需要更改（封面）     -->
		<!-- ************************** -->
		<!-- 封面 -->
		<view class="cover container" :class="{container0: background === 1, container1: background === 2}"
			:style="{zIndex: 201, transform: `translate${cover.pageTranslate[turnType]}`, transition: `transform ${showAnimation?turnPageTime:0}s`,
			boxShadow:showShadow&&turnType===0?'0 0 10px 0 rgba(0,0,0,.4)':''}"
			@touchstart="coverTouchStart" @touchend="coverTouchEnd" @touchmove="coverTouchMove" @touchcancel="coverTouchcancel"
		>
			<image>
				
			</image>
			<view>
				我是封面
			</view>
		</view>
		<!-- ************************** -->
		<!--****************************-->
		<!-- ************************** -->
		
		
		<!-- 阅读页（结构和样式请和仅用于计算元素一致） -->
		<!-- 上一页 -->
		<view class="container" :class="{container0: background === 1, container1: background === 2}"
			:style="{zIndex: 102, transform: `translate${prePage.pageTranslate[turnType]}`, transition: `transform ${showAnimation?turnPageTime:0}s`,
			boxShadow:showShadow&&turnType===0?'0 0 10px 0 rgba(0,0,0,.4)':''}"
		>
			<!-- 章节名 -->
			<view class="chapter">
				{{prePage.chapterName}}
			</view>
			
			<!-- 外层class="content"用于计算阅读部分的高度 -->
			<view class="content">
				<!-- 内层class="inner-box"利用innerHeight将内容截取至整行，防止文字不完整的情况出现 -->
				<view class="inner-box" :style="{height: `${innerHeight}px`}" v-if="prePage.canRead">
					<!-- 最里层class="book-inner"的用于获取文本总高度，计算总页数，注意不可以overflow:hidden -->
					<view class="book-inner" v-html="prePage.text"
						:style="{fontSize: `${fontSize}px`, lineHeight: `${lineHeight*fontSize}px`,color: `${colorList[background - 1]}`,
						transform: `translateY(-${prePage.pageNum*innerHeight}px)`}"
					>
					</view>
				</view>
				<view style="display:flex;flex-flow: column;justify-content: center;align-items: center;height: 100%;"
				 v-else>
					付费章节
					<view style="padding: 5px 15px;background-color: #eee;">去购买</view>
				</view>
				
			</view>
			<view class="bottom-bar">
				<!-- 时间 -->
				<view>
					{{systemTimeStr}}
				</view>
				<!-- 页码 -->
				<view>
					{{prePage.pageNum + 1}}/{{prePage.totalPage}}
				</view>
				<!-- 电量 -->
				<view>
					<battery :level="batteryLevel" :charging="batteryState === 2"></battery>
				</view>
			</view>
			
		</view>
		
		<!-- 本页 -->
		<view class="container" :class="{container0: background === 1, container1: background === 2}"
			:style="{zIndex: 101, transform: `translate${curPage.pageTranslate[turnType]}`, transition: `transform ${showAnimation?turnPageTime:0}s`,
			boxShadow:showShadow&&turnType===0?'0 0 10px 0 rgba(0,0,0,.4)':''}"
			@touchstart="touchStart" @touchend="touchEnd" @touchmove="touchMove" @touchcancel="touchcancel"
		>
			<!-- 章节名 -->
			<view class="chapter">
				{{curPage.chapterName}}
			</view>
			<view class="content">
				<view class="inner-box" :style="{height: `${innerHeight}px`}" v-if="curPage.canRead">
					<view class="book-inner" v-html="curPage.text"
						:style="{fontSize: `${fontSize}px`, lineHeight: `${lineHeight*fontSize}px`,color: `${colorList[background - 1]}`,
						transform: `translateY(-${curPage.pageNum*innerHeight}px)`}"
					>
					</view>
				</view>
				<view style="display:flex;flex-flow: column;justify-content: center;align-items: center;height: 100%;"
				 v-else>
					付费章节
					<view style="padding: 5px 15px;background-color: #eee;" @touchstart.stop @touchmove.stop @touchend.stop="buyBook">去购买</view>
				</view>
				
			</view>
			<view class="bottom-bar">
				<!-- 时间 -->
				<view>
					{{systemTimeStr}}
				</view>
				<!-- 页码 -->
				<view>
					{{curPage.pageNum + 1}}/{{curPage.totalPage}}
				</view>
				<!-- 电量 -->
				<view>
					<battery :level="batteryLevel" :charging="batteryState === 2"></battery>
				</view>
			</view>
			
		</view>
		
		<!-- 下一页 -->
		<view class="container" :class="{container0: background === 1, container1: background === 2}"
			:style="{zIndex: 100, transform: `translate${nextPage.pageTranslate[turnType]}`,transition: `transform ${showAnimation?turnPageTime:0}s`,
			boxShadow:showShadow&&turnType===0?'0 0 10px 0 rgba(0,0,0,.4)':''}"
		>
			<!-- 章节名 -->
			<view class="chapter">
				{{nextPage.chapterName}}
			</view>
			<view class="content">
				<view class="inner-box" :style="{height: `${innerHeight}px`}" v-if="nextPage.canRead">
					<view class="book-inner" v-html="nextPage.text"
						:style="{fontSize: `${fontSize}px`, lineHeight: `${lineHeight*fontSize}px`,color: `${colorList[background - 1]}`,
						transform: `translateY(-${nextPage.pageNum*innerHeight}px)`}"
					>
					</view>
				</view>
				<view style="display:flex;flex-flow: column;justify-content: center;align-items: center;height: 100%;"
				 v-else>
					付费章节
					<view style="padding: 5px 15px;background-color: #eee;">去购买</view>
				</view>
				
			</view>
			<view class="bottom-bar">
				<!-- 时间 -->
				<view>
					{{systemTimeStr}}
				</view>
				<!-- 页码 -->
				<view>
					{{nextPage.pageNum + 1}}/{{nextPage.totalPage}}
				</view>
				<!-- 电量 -->
				<view>
					<battery :level="batteryLevel" :charging="batteryState === 2"></battery>
				</view>
			</view>
			
		</view>
		
		<!-- 菜单层 -->
		<view class="menu" :style="{height: `100%`, width: `${windowWidth}px`}" 
		v-if="menuShow" @touchend="closeMenu">
			<!-- 菜单层包含返回按钮的上半部分 -->
			<view class="menu-top" :style="{height: `${statusBarHeight + 40}px`, top: itemShow ? 0 : `-100%`}" @touchend.stop>
				<view :style="{height: `${statusBarHeight}px`}"></view>
				<view class="head">
					<text class="iconfont back" @click="back">&#xe71a;</text>
				</view>
			</view>
			<!-- 菜单主体 -->
			<view class="menu-bottom" :style="{bottom: itemShow ? 0 : '-100%'}" @touchend.stop>
				<!-- 用于显示章节进度 -->
				<view class="show-chapter" v-if="progressTouched">{{directoryList[chapterProgress].name}}</view>
				<view class="show-chapter" v-else>{{curChapter.chapterName}}</view>
				
				<!-- 章节进度条 -->
				<view class="progress-box">
					<text @click="goPreChapter">上一章</text>
					<view style="flex: 1;height: 100%;padding: 8px 0;">
						<slider :value="curChapter.chapterIndex" activeColor="#000" :block-size="20" 
						:max="directoryList.length - 1" @changing="slideChanging" @change="slideChange"/>
					</view>
					<text @click="goNextChapter">下一章</text>
				</view>
				<view class="items-box">
					<view class="item-box" @click="openDirectory">
						<text class="iconfont" style="font-size: 25px;">&#xe601;</text>
						<text style="font-size: 13px;">目录</text>
					</view>
					<view class="item-box" v-if="background === 2" @click="changeBackground(1)">
						<text class="iconfont" style="font-size: 25px;">&#xe63e;</text>
						<text style="font-size: 13px;">夜间</text>
					</view>
					<view class="item-box" v-if="background === 1" @click="changeBackground(2)">
						<text class="iconfont" style="font-size: 25px;">&#xe64c;</text>
						<text style="font-size: 13px;">日间</text>
					</view>
					<view class="item-box" @click="openSetting">
						<text class="iconfont" style="font-size: 25px;">&#xe61d;</text>
						<text style="font-size: 13px;">设置</text>
					</view>
					
				</view>
			</view>
			
			<view class="setting" :style="{bottom: settingShow ? 0 : `-100%`}" @touchend.stop>
				<view class="item">
					<view class="item-name">字号</view>
					<view class="icon" @click="bigSize" v-if="fontSize<maxFontSize">A+</view>
					<view class="icon" style="color: #666; border: #666 solid 1px;" v-else>A+</view>
					<view class="icon" @click="smallSize" v-if="fontSize>minFontSize">A-</view>
					<view class="icon" style="color: #666;border: #666 solid 1px;" v-else>A-</view>
					<view class="icon" @click="changeFont(2)" v-if="simplified === 1">繁體</view>
					<view class="icon" @click="changeFont(1)" v-else style="border: #FF9900 solid 1px;color: #FF9900">繁體</view>
				</view>
				<view class="item">
					<view class="item-name">排版</view>
					<view class="type-setting" :class="{active: lineHeight === 1}" @click="changeLineHeight(1)">
						<view class="line" :class="{lineActive: lineHeight === 1}" v-for="i in 5" :key="i"></view>
					</view>
					<view class="type-setting" :class="{active: lineHeight === 1.5}" @click="changeLineHeight(1.5)">
						<view class="line" :class="{lineActive: lineHeight === 1.5}" v-for="i in 4" :key="i"></view>
					</view>
					<view class="type-setting" :class="{active: lineHeight === 2}" @click="changeLineHeight(2)">
						<view class="line" :class="{lineActive: lineHeight === 2}" v-for="i in 3" :key="i"></view>
					</view>
				</view>
				<view class="item">
					<view class="item-name">翻页</view>
					<view class="icon" :class="{active: turnType === 0}" style="padding: 5px 8px;" @click="changeTurnType(0)">覆盖</view>
					<view class="icon" :class="{active: turnType === 1}" style="padding: 5px 8px;" @click="changeTurnType(1)">左右平移</view>
					<view class="icon" :class="{active: turnType === 2}" style="padding: 5px 8px;" @click="changeTurnType(2)">上下平移</view>
				</view>
				<view class="item">
					<view class="item-name">背景</view>
					<view class="icon" style="background: url(../../static/background1.jpg);" :class="{active: background === 1}" @click="changeBackground(1)"></view>
					<view class="icon" style="background-color: #000;" :class="{active: background === 2}" @click="changeBackground(2)"></view>
				</view>
			</view>
			
			<!-- 目录层 -->
			<view class="directory" :class="{container0: background === 1, container1: background === 2}" v-if="directoryShowBefore"
			 :style="{left: directoryShow ? 0 : '-100%',color: `${colorList[background - 1]}`,boxShadow:'0 0 10px 0 rgba(0,0,0,.4)'}" @touchend.stop>
			 
				<view class="bookname">书名</view>
				<!--  :size="40"——每一栏高度为40px  :scrollHeight="windowHeight - 60"——书名的高度为60px -->
				<virtual-list :items="directoryList" :size="40" :remain="16" :active="curChapter.chapterIndex" :scrollHeight="windowHeight - 60">
					<template v-slot="{item,active}">
						<view class="directory-listItem" :class="{active: item.index == active}"
						@click="goToChapter(item.index)">
							{{item.name}}
						</view>
					</template>
				</virtual-list>
			</view>
		</view>
		
	</view>
</template>

<script>
	import battery from '../../components/battery.vue'
	import virtualList from '../../components/virtualList.vue'
	import { traditionalized, simplized, dateToStr } from '../../utils/utils.js'
	import { getChapter, getChapterContent } from "../../utils/api.js"
	export default {
		components:{
			battery,
			virtualList
		},
		data() {
			return {
				bookName: '我是书名',
				bookId: 1,
				history: {  //本书历史记录
					chapterIndex: 0,
					progress: 0
				},
				text:`<p>内容</p>`,
				directoryList: [],  //目录列表
				currentPage: 0,   //当前页
				
				innerHeight: 0,   //截取至整行的最大高度
				
				preChapter: {   //上一章数据
					ready: false,  //是否准备完毕
					chapterIndex: '',
					chapterName: '',
					text: '',
					totalPage: '',
					canRead: true
				},
				
				curChapter: {   //本一章数据
					chapterIndex: '',
					chapterName: '',
					text: '',
					totalPage: '',
					canRead: true
				},
				
				nextChapter: {   //下一章数据
					ready: false,  //是否准备完毕
					chapterIndex: '',
					chapterName: '',
					text: '',
					totalPage: '',
					canRead: true
				},
				
				tmpChapter: {  //暂存章节内容
					text: '',
					canRead: true
				},
				
				cover: {    //封面的状态
					pageTranslate: ['', '', ''],  //页面位移，三个数对应三种翻页方式
				},
				
				prePage: {    //上一页数据
					ready: false,  //是否准备完毕
					chapterName: '',
					text: '',
					pageNum: '',
					totalPage: 1,
					pageTranslate: ['', '', ''],  //页面位移，三个数对应三种翻页方式
					canRead: true
				},
				
				curPage: {   //本页数据
					ready: false,  //是否准备完毕
					chapterName: '',
					text: '',
					pageNum: 1,
					totalPage: 1,
					pageTranslate: ['', '', ''],  //页面位移，三个数对应三种翻页方式
					canRead: true
				},
				
				nextPage: {   //下一页数据
					ready: false,  //是否准备完毕
					chapterName: '',
					text: '',
					pageNum: '',
					totalPage: '',
					pageTranslate: ['', '', ''],  //页面位移，三个数对应三种翻页方式
					canRead: true
				},
				
				
				next: false,  //用户是否正在翻下一页
				pre: false,  //用户是否正在翻上一页
				
				waitForNext: false,  //是否正在等待下一页准备完毕后跳转
				waitForPre: false,  //是否正在等待上一页准备完毕后跳转
				waitForNextChapter: false,  //是否正在等待下一章准备完毕后跳转
				waitForPreChapter: false,  //是否正在等待上一章准备完毕后跳转
				
				showAnimation: false, //是否开启动画
				showShadow: false, //是否显示页面阴影
				
				windowWidth: 0,   //可用屏幕宽度
				windowHeight: 0,   //可用屏幕高度
				contentHeight: 0,  //阅读区域高度
				
				platform: '',  //设备
				batteryState: '', //电池状态
				batteryLevel: 100, //电量
				systemTime: '',   //系统时间
				systemTimeStr: '',   //系统时间字符串
				statusBarHeight: 0, //状态栏高度
				pixelRatio: '',    //设备像素比
				
				touchStartX: 0,  // 触屏起始点x
				touchX: 0,  // 瞬时触屏点x
				delta: 0,  // 手指瞬时位移
				
				touchStartY: 0,  // 触屏起始点y
				touchY: 0,  // 瞬时触屏点y
				
				menuShow: false,  //菜单栏box是否渲染
				itemShow: false,  // 菜单栏动画控制
				settingShow: false,  //设置栏动画控制
				directoryShow: false,  //目录动画控制
				directoryShowBefore: false,  // 目录渲染
				turnPageTime: .5,  //翻页动画时间
				
				maxFontSize: 30,   //最大字体大小，px
				minFontSize: 14,   //最小字体大小，px
				turnType: 0,  //翻页方式
				fontSize: '',   //字体大小，
				simplified: '',   //是否简体
				lineHeight: '',   //行高，注意是fontSize的倍数
				background: '',    //背景
				colorList: ['#000', '#666'],   //与背景对应的字体颜色

				chapterProgress: 0,   //‘章节进度条’的参数
				progressTouched: false   ,//是否正在点击‘章节进度条’
				
				book_id: '',	// 书籍id
				
				read_id: ''		//阅读章节id
				
			}
		},
		onLoad(option) {
			if ( !option.rid || !option.bid ){
				uni.switchTab({
					url: '/pages/index/index'
				})
			}
			
			this.read_id = option.rid;
			this.book_id = option.bid;
			
			this.getSystemInfo()
		},
		onUnload() {
			
			// #ifdef APP-PLUS
				// 退出全屏
				plus.navigator.setFullscreen(false)
			// #endif
			
			this.setStorage()
		},
		onHide() {
			this.setStorage()
		},
		mounted() {
			this.initPage()
		},
		computed:{
			progress() {      //章节的阅读进度
				if (this.curChapter.totalPage === 1) {
					return 0
				}
				return this.currentPage / (this.curChapter.totalPage - 1)
			}
		},
		methods: {
			
			setStorage() {
				let history = uni.getStorageSync('history')
				if (typeof history !== 'object') {
					history = []
				}
				let have = false
				history.forEach((value) => {
					if (value.bookId === this.bookId) {
						have = true
						value.chapterIndex = this.curChapter.chapterIndex
						value.progress = this.progress
					}
				})
				if (!have) {
					history.push({
						bookId: this.bookId,
						chapterIndex: this.curChapter.chapterIndex,
						progress: this.progress
					})
				}
				uni.setStorageSync('history', history)
			},
			
			/**
			* 返回上一页面
			**/
			back() {
				uni.navigateBack()
			},
			
			/**
			* 获取设备信息
			**/
			getSystemInfo() {
				
				const { windowWidth, windowHeight, statusBarHeight, platform, pixelRatio } = uni.getSystemInfoSync()
				//获取一些必要的设备参数
				this.statusBarHeight = statusBarHeight
				this.windowWidth = windowWidth
				this.windowHeight = windowHeight
				this.pixelRatio = pixelRatio
				this.platform = platform
				// #ifdef APP-PLUS
					// 全屏
					plus.navigator.setFullscreen(true)
					// 取消ios左滑返回
					let page = this.$mp.page.$getAppWebview()
					page.setStyle({ popGesture: 'none' })
					
					if (this.platform === 'ios') {
						// 获取ios电量
						let UIDevice = plus.ios.import("UIDevice")
						let dev = UIDevice.currentDevice()
						if (!dev.isBatteryMonitoringEnabled()) {  
						    dev.setBatteryMonitoringEnabled(true) 
						}
						setInterval(() => {
							this.batteryState = dev.batteryState()
							this.batteryLevel = dev.batteryLevel() * 100
						}, 1000)
						
					}
					else {
						// 获取安卓电量
						let main = plus.android.runtimeMainActivity();
						let Intent = plus.android.importClass('android.content.Intent');  
						let recevier = plus.android.implements('io.dcloud.feature.internal.reflect.BroadcastReceiver', {  
						    onReceive: (context, intent) => {  
						        let action = intent.getAction();  
						        if (action == Intent.ACTION_BATTERY_CHANGED) {  
						            this.batteryState = intent.getIntExtra("status", 0); //电池状态  
									this.batteryLevel = intent.getIntExtra("level", 0); //电量
						        }  
						    }  
						 });  
						let IntentFilter = plus.android.importClass('android.content.IntentFilter');  
						let filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);  
						main.registerReceiver(recevier, filter); 
					}
					
				// #endif
				
				// 设置时间
				let date = new Date();
				this.systemTime = Date.parse(date);
				this.systemTimeStr = dateToStr(this.systemTime);
				setInterval(() => {
					this.systemTime += 60000;
					this.systemTimeStr = dateToStr(this.systemTime);
				}, 60000)
				
				// 获取字体、排版等信息
				
				/*****************************************/
				/**********    根据需要更改    ************/
				/*****************************************/
				
				//可能缓存在前端可能从后端拿，如果是异步注意同步处理
				this.fontSize = uni.getStorageSync('fontSize')
				if (typeof this.fontSize !== 'number') {
					this.fontSize = 16
				}
				this.simplified = uni.getStorageSync('simplified')
				if (typeof this.simplified !== 'number') {
					this.simplified = 1
				}
				this.lineHeight = uni.getStorageSync('lineHeight')
				if (typeof this.lineHeight !== 'number') {
					this.lineHeight = 1.5
				}
				this.background = uni.getStorageSync('background')
				if (typeof this.background !== 'number') {
					this.background = 1
				}
				this.turnType = uni.getStorageSync('turnType')
				if (typeof this.turnType !== 'number') {
					this.turnType = 0
				}
				let history = uni.getStorageSync('history')
				if (typeof history !== 'object') {
					history = []
				}
				history.forEach((value) => {
					if (value.bookId === this.bookId) {
						this.history = value
					}
				})
				
				/*****************************************/
				/*****************************************/
				/*****************************************/
				
			},
			
			/**
			* 获取数据并计算页面
			**/
			async initPage() {
				uni.showLoading({
					title: '加载中',
					mask: true
				})
				this.cover.pageTranslate = [
					`(${-this.windowWidth}px,0)`,
					`(${-this.windowWidth}px,0)`,
					`(0,${-this.windowHeight}px)`
				]
				await this.calcHeight()
				await this.getDirectoryList()
				
				if (this.history.chapterIndex > this.directoryList.length - 1 || !this.history.chapterIndex) {
					this.history.chapterIndex = 0
				}
				await this.getThreeChapter(this.history.chapterIndex)
				let page = Math.floor((this.curChapter.totalPage - 1) * this.history.progress)
				this.goToPage(page)
				uni.hideLoading()
				
			},
			
			/**
			* 计算innerHeight，用于截取至整行
			**/
			calcHeight() {
				if (this.contentHeight) {
					let lineHeight = this.fontSize * this.lineHeight;
					// #ifdef APP-PLUS || MP-WEIXIN
						lineHeight = Math.floor(lineHeight*this.pixelRatio)/this.pixelRatio
					// #endif
					let lineNum = Math.floor((this.contentHeight + Math.floor((lineHeight - this.fontSize)/2)) / lineHeight)
					this.innerHeight = lineNum * lineHeight
				}
				else {
					return new Promise((resolve, reject) => {
						this.$nextTick(() => {
							const query = uni.createSelectorQuery().in(this);
							query.select('#content').boundingClientRect(data => {
								let height = data.height;
								this.contentHeight = height;
								let lineHeight = this.fontSize * this.lineHeight;
								
								// #ifdef APP-PLUS || MP-WEIXIN
									lineHeight = Math.floor(lineHeight*this.pixelRatio)/this.pixelRatio
								// #endif
								let lineNum = Math.floor((height + Math.floor((lineHeight - this.fontSize)/2)) / lineHeight)
								this.innerHeight = lineNum * lineHeight
								resolve()
							}).exec();
						})
						
					})
				}
				
			},
			
			/**
			* 计算本章页数
			**/
			calcCurChapter() {
				return new Promise((resolve, reject) => {
					// 此处setTimeout 100ms是为了确保元素渲染完毕从而获取正确高度，如果遇到页面页数计算不正确的情况可以增加时间试试看
					setTimeout(() => {
						const query = uni.createSelectorQuery().in(this);
						query.select('#curChapter').boundingClientRect(data => {
							let height = data.height;
							// #ifdef APP-PLUS || MP-WEIXIN
							
								height = Math.round(height*this.pixelRatio)/this.pixelRatio
							// #endif
							this.curChapter.totalPage = Math.ceil(height/this.innerHeight) || 1
							this.curChapter.ready = true   //章节准备完毕
							resolve()
						}).exec();
					}, 100)
					
				})
			},
			
			/**
			* 计算上一章页数,并翻页（如果有）
			**/
			calcPreChapter() {
				return new Promise((resolve, reject) => {
					// 此处setTimeout 100ms是为了确保元素渲染完毕从而获取正确高度，如果遇到页面页数计算不正确的情况可以增加时间试试看
					setTimeout(() => {
						const query = uni.createSelectorQuery().in(this);
						query.select('#preChapter').boundingClientRect(data => {
							let height = data.height;
							// #ifdef APP-PLUS || MP-WEIXIN
								height = Math.round(height*this.pixelRatio)/this.pixelRatio
							// #endif
							this.preChapter.totalPage = Math.ceil(height/this.innerHeight) || 1
							this.preChapter.ready = true   //章节准备完毕
							if (this.waitForPre) {    //发生在用户翻至上一章，但是上一章数据未准备完毕时
								uni.hideLoading()   //把loading关掉
								this.waitForPre = false;
								//页面准备完毕
								this.goPrePage()
							}
							if (this.waitForPreChapter) {
								uni.hideLoading()
								this.waitForPreChapter = false
								this.goPreChapter()
							}
							resolve()
						}).exec();
					},100)
					
				})
				
			},
			
			/**
			* 计算下一章页数,并翻页（如果有）
			**/
			calcNextChapter() {
				return new Promise((resolve, reject) => {
					// 此处setTimeout 100ms是为了确保元素渲染完毕从而获取正确高度，如果遇到页面页数计算不正确的情况可以增加时间试试看
					setTimeout(() => {
						const query = uni.createSelectorQuery().in(this);
						query.select('#nextChapter').boundingClientRect(data => {
							let height = data.height;
							// #ifdef APP-PLUS || MP-WEIXIN
								height = Math.round(height*this.pixelRatio)/this.pixelRatio
							// #endif
							this.nextChapter.totalPage = Math.ceil(height/this.innerHeight) || 1
							this.nextChapter.ready = true   //章节准备完毕
							if (this.waitForNext) {   //发生在用户翻至下一章，但是下一章数据未准备完毕时
								uni.hideLoading()    //把loading关掉
								this.waitForNext = false;
								//页面准备完毕
								this.goNextPage()
							}
							if (this.waitForNextChapter) {
								uni.hideLoading()
								this.waitForNextChapter = false
								this.goNextChapter()
							}
							resolve()
						}).exec();
						
					},100)
					
				})
				
			},
			
			/**
			* 触摸开始（封面）
			**/
			coverTouchStart(e) {
				this.showAnimation = false    //关掉动画，否则翻页会很慢
				this.touchX = e.touches[0].clientX
				this.touchStartX = e.touches[0].clientX
				this.touchY = e.touches[0].clientY
				this.touchStartY = e.touches[0].clientY
			},
			
			/**
			* 触摸（封面）
			**/
			coverTouchMove(e) {
				this.showShadow = true
				let delta = 0
				if (this.turnType === 0 || this.turnType === 1) {  //翻页方式为‘覆盖’或者‘左右平移’
					delta = e.touches[0].clientX - this.touchStartX;
					
					// 限制边界
					if (delta>this.windowWidth) {
						delta = this.windowWidth
					}
					if (delta<-this.windowWidth) {
						delta = -this.windowWidth
					}
					
					this.delta = e.touches[0].clientX - this.touchX;
					this.touchX = e.touches[0].clientX;
				}
				else {	//翻页方式为‘上下平移’
					delta = e.touches[0].clientY - this.touchStartY;
					
					// 限制边界
					if (delta>this.windowHeight) {
						delta = this.windowHeight
					}
					if (delta<-this.windowHeight) {
						delta = -this.windowHeight
					}
					
					this.delta = e.touches[0].clientY - this.touchY;
					this.touchY = e.touches[0].clientY;
				}
				
				if (this.next) {   //首次翻下一页之后
				
					// 限制边界
					if (delta>0) {
						delta = 0
					}
					
					this.cover.pageTranslate = [
						`(${delta}px,0)`,
						`(${delta}px,0)`,
						`(0,${delta}px)`
					]
					this.curPage.pageTranslate = [
						`(0,0)`,
						`(${this.windowWidth + delta}px,0)`,
						`(0,${this.windowHeight + delta}px)`
					]
				}
				if (!this.pre && !this.next && delta < 0) {  //首次翻下一页
					this.next = true
					this.cover.pageTranslate = [
						`(${delta}px,0)`,
						`(${delta}px,0)`,
						`(0,${delta}px)`
					]
					this.curPage.pageTranslate = [
						`(0,0)`,
						`(${this.windowWidth + delta}px,0)`,
						`(0,${this.windowHeight + delta}px,)`
					]
				}
				if (this.pre) {   //首次右滑后，由于是封面不做任何操作
					return
				}
				if (!this.pre && !this.next && delta > 0) {  //首次右滑
					this.pre = true
					uni.showToast({
						title: '已经是第一页了',
						icon: 'none'
					})
				}
				
				
			},
			
			/**
			* 触摸结束（封面）
			**/
			coverTouchEnd(e) {
				this.showAnimation = true
				this.showShadow = false
				let delta = 0
				if (this.turnType === 0 || this.turnType === 1) {  //翻页方式为‘覆盖’或者‘左右平移’
					delta = e.changedTouches[0].clientX - this.touchStartX;
				}
				else {   //翻页方式为‘上下平移’
					delta = e.changedTouches[0].clientY - this.touchStartY;
				}
				if (delta === 0) {
					if (e.changedTouches[0].clientX<this.windowWidth/3) { //点击屏幕左1/3为上一页
						uni.showToast({
							title: '已经是第一页了',
							icon: 'none'
						})
					}
					else if (e.changedTouches[0].clientX>this.windowWidth/3*2) { //点击屏幕右1/3为下一页
						this.cover.pageTranslate = [
							`(${-this.windowWidth}px,0)`,
							`(${-this.windowWidth}px,0)`,
							`(0,${-this.windowHeight}px)`
						]
						this.curPage.pageTranslate = [
							`(0,0)`,
							`(0,0)`,
							`(0,0)`
						]
					}
					else if (e.changedTouches[0].clientX<=this.windowWidth/3*2 && e.changedTouches[0].clientX>=this.windowWidth/3) { //点击屏幕中间1/3为呼出菜单
						this.showMenu()
					}
				}
				else {
					if (this.next && this.delta <= 0) {  //下一页
						this.cover.pageTranslate = [
							`(${-this.windowWidth}px,0)`,
							`(${-this.windowWidth}px,0)`,
							`(0,${-this.windowHeight}px)`
						]
						this.curPage.pageTranslate = [
							`(0,0)`,
							`(0,0)`,
							`(0,0)`
						]
					}
					else if (this.next && this.delta > 0) {  //取消翻页
						this.cover.pageTranslate = [
							`(0,0)`,
							`(0,0)`,
							`(0,0)`
						]
						this.curPage.pageTranslate = [
							`(0,0)`,
							`(${this.windowWidth}px,0)`,
							`(0,${this.windowHeight}px)`
						]
					}
				}
				this.next = false
				this.pre = false
				
			},
			
			/**
			* 触摸取消（封面）
			**/
			coverTouchcancel() {
				
				// 取消翻页
				this.showAnimation = false
				this.showShadow = false
				this.cover.pageTranslate = [
					`(0,0)`,
					`(0,0)`,
					`(0,0)`
				]
				this.curPage.pageTranslate = [
					`(0,0)`,
					`(${this.windowWidth}px,0)`,
					`(0,${this.windowHeight}px)`
				]
				this.next = false
				this.pre = false
			},
			
			/**
			* 触摸开始
			**/
			touchStart(e) {
				this.showAnimation = false
				this.touchX = e.touches[0].clientX;
				this.touchStartX = e.touches[0].clientX;
				this.touchY = e.touches[0].clientY;
				this.touchStartY = e.touches[0].clientY;
			},
			
			/**
			* 触摸
			**/
			touchMove(e) {
				this.showShadow = true;
				let delta = 0
				if (this.turnType === 0 || this.turnType === 1) {  //翻页方式为‘覆盖’或者‘左右平移’
					delta = e.touches[0].clientX - this.touchStartX;
					
					// 限制边界
					if (delta>this.windowWidth) {
						delta = this.windowWidth
					}
					if (delta<-this.windowWidth) {
						delta = -this.windowWidth
					}
					
					this.delta = e.touches[0].clientX - this.touchX;
					this.touchX = e.touches[0].clientX;
				}
				else {	//翻页方式为‘上下平移’
					delta = e.touches[0].clientY - this.touchStartY;
					
					// 限制边界
					if (delta>this.windowHeight) {
						delta = this.windowHeight
					}
					if (delta<-this.windowHeight) {
						delta = -this.windowHeight
					}
					
					this.delta = e.touches[0].clientY - this.touchY;
					this.touchY = e.touches[0].clientY;
				}
				
				if (this.next && this.nextPage.ready) {   //首次翻下一页之后
					if (this.nextPage.isEnd) {
						return
					}
					
					// 限制边界
					if (delta>0) {
						delta = 0
					}
					
					this.prePage.pageTranslate = [
						`(${-this.windowWidth}px,0)`,
						`(${-this.windowWidth+delta}px,0)`,
						`(0,${-this.windowHeight+delta}px)`
					]
					this.curPage.pageTranslate = [
						`(${delta}px,0)`,
						`(${delta}px,0)`,
						`(0,${delta}px)`
					]
					this.nextPage.pageTranslate = [
						`(0,0)`,
						`(${this.windowWidth+delta}px,0)`,
						`(0,${this.windowHeight+delta}px)`
					]
				}
				if (!this.pre && !this.next && delta < 0) {  //首次翻下一页
					this.next = true
					if (this.nextPage.ready) {  //页面准备好了
						if (this.nextPage.isEnd) {
							
							
							/*****************************************/
							/**********    根据需要更改    ************/
							/*****************************************/
							uni.showToast({
								title:'跳转推荐页',
								icon:'none'
							})
							/*****************************************/
							/*****************************************/
							/*****************************************/
							
							
						}
						else {
							this.prePage.pageTranslate = [
								`(${-this.windowWidth}px,0)`,
								`(${-this.windowWidth+delta}px,0)`,
								`(0,${-this.windowHeight+delta}px)`
							]
							this.curPage.pageTranslate = [
								`(${delta}px,0)`,
								`(${delta}px,0)`,
								`(0,${delta}px)`
							]
							this.nextPage.pageTranslate = [
								`(0,0)`,
								`(${this.windowWidth+delta}px,0)`,
								`(0,${this.windowHeight+delta}px)`
							]
						}
					}
					else if (this.nextChapter.ready) {  //下一章已经准备好了
						this.nextPage = {
							ready: this.nextChapter.ready,
							chapterName: this.nextChapter.chapterName,
							text: this.nextChapter.text,
							pageNum: 0,
							totalPage: this.nextChapter.totalPage,
							pageTranslate: [
								`(0,0)`,
								`(${this.windowWidth}px,0)`,
								`(0,${this.windowHeight}px)`
							],
							canRead: this.nextChapter.canRead
						}
						this.prePage.pageTranslate = [
							`(${-this.windowWidth}px,0)`,
							`(${-this.windowWidth+delta}px,0)`,
							`(0,${-this.windowHeight+delta}px)`
						]
						this.curPage.pageTranslate = [
							`(${delta}px,0)`,
							`(${delta}px,0)`,
							`(0,${delta}px)`
						]
						this.nextPage.pageTranslate = [
							`(0,0)`,
							`(${this.windowWidth+delta}px,0)`,
							`(0,${this.windowHeight+delta}px)`
						]
					}
				}
				if (this.pre && this.prePage.ready) {   //首次翻上一页之后
					
					// 限制边界
					if (delta<0) {
						delta = 0
					}
					
					if (this.prePage.isCover) {  //上一页是封面
						this.cover.pageTranslate = [
							`(${-this.windowWidth+delta}px,0)`,
							`(${-this.windowWidth+delta}px,0)`,
							`(0,${-this.windowHeight+delta}px)`
						]
						this.curPage.pageTranslate = [
							`(0,0)`,
							`(${delta}px,0)`,
							`(0,${delta}px)`
						]
					}
					else {
						this.prePage.pageTranslate = [
							`(${-this.windowWidth+delta}px,0)`,
							`(${-this.windowWidth+delta}px,0)`,
							`(0,${-this.windowHeight+delta}px)`
						]
						this.curPage.pageTranslate = [
							`(0,0)`,
							`(${delta}px,0)`,
							`(0,${delta}px)`
						]
						this.nextPage.pageTranslate = [
							`(0,0)`,
							`(${this.windowWidth+delta}px,0)`,
							`(0,${this.windowHeight+delta}px)`
						]
					}
				}
				if (!this.pre && !this.next && delta > 0) {  //首次翻上一页
					this.pre = true
					if (this.prePage.ready) {  //页面准备好了
						if (this.prePage.isCover) {  //上一页是封面
							this.cover.pageTranslate = [
								`(${-this.windowWidth+delta}px,0)`,
								`(${-this.windowWidth+delta}px,0)`,
								`(0,${-this.windowHeight+delta}px)`
							]
							this.curPage.pageTranslate = [
								`(0,0)`,
								`(${delta}px,0)`,
								`(0,${delta}px)`
							]
						}
						else {
							this.prePage.pageTranslate = [
								`(${-this.windowWidth+delta}px,0)`,
								`(${-this.windowWidth+delta}px,0)`,
								`(0,${-this.windowHeight+delta}px)`
							]
							this.curPage.pageTranslate = [
								`(0,0)`,
								`(${delta}px,0)`,
								`(0,${delta}px)`
							]
							this.nextPage.pageTranslate = [
								`(0,0)`,
								`(${this.windowWidth+delta}px,0)`,
								`(0,${this.windowHeight+delta}px)`
							]
						}
					}
					else if (this.preChapter.ready) {  //上一章已经准备好了
						this.prePage = {
							ready: this.preChapter.ready,
							chapterName: this.preChapter.chapterName,
							text: this.preChapter.text,
							pageNum: this.preChapter.totalPage - 1,
							totalPage: this.preChapter.totalPage,
							pageTranslate: [
								`(${-this.windowWidth}px,0)`,
								`(${-this.windowWidth}px,0)`,
								`(0,${-this.windowHeight}px)`
							],
							canRead: this.preChapter.canRead
						}
						this.prePage.pageTranslate = [
							`(${-this.windowWidth+delta}px,0)`,
							`(${-this.windowWidth+delta}px,0)`,
							`(0,${-this.windowHeight+delta}px)`
						]
						this.curPage.pageTranslate = [
							`(0,0)`,
							`(${delta}px,0)`,
							`(0,${delta}px)`
						]
						this.nextPage.pageTranslate = [
							`(0,0)`,
							`(${this.windowWidth+delta}px,0)`,
							`(0,${this.windowHeight+delta}px)`
						]
					}
				}
				
			},
			
			/**
			* 触摸结束
			**/
			touchEnd(e) {
				this.showAnimation = true
				this.showShadow = false
				let delta = 0
				if (this.turnType === 0 || this.turnType === 1) {
					delta = e.changedTouches[0].clientX - this.touchStartX;
				}
				else {
					delta = e.changedTouches[0].clientY - this.touchStartY;
				}
				if (delta < 0.8 && delta > -0.8) {   //部分手机点击屏幕时无法做到delta===0
					if (e.changedTouches[0].clientX<this.windowWidth/3) { //点击屏幕左1/3为上一页
						this.goPrePage()
					}
					else if (e.changedTouches[0].clientX>this.windowWidth/3*2) { //点击屏幕右1/3为下一页
						this.goNextPage()
					}
					else if (e.changedTouches[0].clientX<=this.windowWidth/3*2 && e.changedTouches[0].clientX>=this.windowWidth/3) { //点击屏幕中间1/3为呼出菜单
						this.showMenu()
					}
				}
				else {
					if (this.next && this.delta <= 0) {  //下一页
						this.goNextPage()
					}
					else if (this.next && this.delta > 0) {  //取消翻页
						this.prePage.pageTranslate = [
							`(${-this.windowWidth}px,0)`,
							`(${-this.windowWidth}px,0)`,
							`(0,${-this.windowHeight}px)`
						]
						this.curPage.pageTranslate = [
							`(0,0)`,
							`(0,0)`,
							`(0,0)`
						]
						this.nextPage.pageTranslate = [
							`(0,0)`,
							`(${this.windowWidth}px,0)`,
							`(0,${this.windowHeight}px)`
						]
					}
					else if (this.pre && this.delta >= 0) {  //上一页
						this.goPrePage()
					}
					else if (this.pre && this.delta < 0) {  //取消翻页
						this.prePage.pageTranslate = [
							`(${-this.windowWidth}px,0)`,
							`(${-this.windowWidth}px,0)`,
							`(0,${-this.windowHeight}px)`
						]
						this.curPage.pageTranslate = [
							`(0,0)`,
							`(0,0)`,
							`(0,0)`
						]
						this.nextPage.pageTranslate = [
							`(0,0)`,
							`(${this.windowWidth}px,0)`,
							`(0,${this.windowHeight}px)`
						]
						this.cover.pageTranslate = [
							`(${-this.windowWidth}px,0)`,
							`(${-this.windowWidth}px,0)`,
							`(0,${-this.windowHeight}px)`
						]
					}
				}
				this.next = false
				this.pre = false
				
			},
			
			/**
			* 取消触摸
			**/
			touchcancel() {
				
				//取消翻页,重置页面
				this.showAnimation = false
				this.showShadow = false
				this.prePage.pageTranslate = [
					`(${-this.windowWidth}px,0)`,
					`(${-this.windowWidth}px,0)`,
					`(0,${-this.windowHeight}px)`
				]
				this.curPage.pageTranslate = [
					`(0,0)`,
					`(0,0)`,
					`(0,0)`
				]
				this.nextPage.pageTranslate = [
					`(0,0)`,
					`(${this.windowWidth}px,0)`,
					`(0,${this.windowHeight}px)`
				]
				this.cover.pageTranslate = [
					`(${-this.windowWidth}px,0)`,
					`(${-this.windowWidth}px,0)`,
					`(0,${-this.windowHeight}px)`
				]
				this.next = false
				this.pre = false
			},
			
			/**
			* 呼出菜单
			**/
			showMenu() {
				// #ifdef APP-PLUS
					plus.navigator.setFullscreen(false);
				// #endif
				this.menuShow = true;
				setTimeout(() => {
					this.itemShow = true
				},100)
			},
			
			/**
			* 关闭菜单
			**/
			closeMenu() {
				// #ifdef APP-PLUS
					plus.navigator.setFullscreen(true);
				// #endif
				this.itemShow = false
				this.settingShow = false
				this.directoryShow = false
				setTimeout(() => {
					this.directoryShowBefore = false
					this.menuShow = false
				},300)
			},
			
			/**
			* 关闭菜单栏，呼出设置栏
			**/
			openSetting() {
				
				this.itemShow = false
				setTimeout(() => {
					this.settingShow = true
				},300)
			},
			
			/**
			* 关闭菜单栏，呼出目录栏
			**/
			openDirectory() {
				// #ifdef APP-PLUS
					plus.navigator.setFullscreen(true);
				// #endif
				this.itemShow = false
				this.directoryShowBefore = true
				setTimeout(() => {
					this.directoryShow = true
				},300)
			},
			
			/**
			* 拖动进度条
			**/
			slideChanging(e){
				this.progressTouched = true
				this.chapterProgress = e.detail.value
			},
			
			/**
			* 结束拖动进度条
			**/
			async slideChange(e) {
				
				this.chapterProgress = e.detail.value
				uni.showLoading({
					title: '加载中'
				})
				await this.getThreeChapter(e.detail.value)
				this.progressTouched = false
				this.goToPage(0)
				uni.hideLoading()
				
			},
			
			/**
			* 上一页,页面轮换
			**/
			goPrePage() {
				
				if (this.prePage.isCover) {   //如果是首页
					this.cover.pageTranslate = [
						`(0,0)`,
						`(0,0)`,
						`(0,0)`
					]
					this.curPage.pageTranslate = [
						`(0,0)`,
						`(${this.windowWidth}px,0)`,
						`(0,${this.windowHeight}px)`
					]
					return 
				}
				if (!this.prePage.ready && !this.preChapter.ready) {
					this.waitForPre = true
					uni.showLoading({
						title: '正在准备上一章',
						mask: true
					})
					return
				}
				let showChapter = false
				this.currentPage -= 1
				if (this.currentPage === -1) {   //翻至上一章了
					showChapter = true
					this.currentPage = this.preChapter.totalPage - 1
					this.chapterRotate('pre')
				}
				
				let cur = [].concat(this.curPage.pageTranslate)
				let pre = [].concat(this.prePage.pageTranslate)
				this.goToPage(this.currentPage)
				this.prePage.pageTranslate = [
					`(${-this.windowWidth}px,0)`,
					`(${-this.windowWidth}px,0)`,
					`(0,${-this.windowHeight}px)`
				]
				this.curPage.pageTranslate = pre
				this.nextPage.pageTranslate = cur
				setTimeout(()=> {
					if (showChapter) {
						uni.showToast({
							title: this.curChapter.chapterName,
							icon: 'none'
						})
					}
					this.showAnimation = true
					this.prePage.pageTranslate = [
						`(${-this.windowWidth}px,0)`,
						`(${-this.windowWidth}px,0)`,
						`(0,${-this.windowHeight}px)`
					]
					this.curPage.pageTranslate = [
						`(0,0)`,
						`(0,0)`,
						`(0,0)`
					]
					this.nextPage.pageTranslate = [
						`(0,0)`,
						`(${this.windowWidth}px,0)`,
						`(0,${this.windowHeight}px)`
					]
				},50)
			},
			
			
			/**
			* 下一页,页面轮换
			**/
			goNextPage() {
				if (this.nextPage.isEnd) {   //如果翻至本书末尾
				
					/*****************************************/
					/**********    根据需要更改    ************/
					/*****************************************/
					uni.showToast({						title:'跳转推荐页',						icon:'none'					})
					/*****************************************/
					/*****************************************/
					/*****************************************/
					return 
				}
				if (!this.nextPage.ready && !this.nextChapter.ready) {
					this.waitForNext = true
					uni.showLoading({
						title: '正在准备下一章',
						mask: true
					})
					return
				}
				this.currentPage += 1
				let showChapter = false
				if (this.currentPage === this.curChapter.totalPage) {   //翻至下一章了
					showChapter = true
					this.currentPage = 0
					this.chapterRotate('next')
				}
				
				let cur = [].concat(this.curPage.pageTranslate)
				let next = [].concat(this.nextPage.pageTranslate)
				this.goToPage(this.currentPage)
				this.prePage.pageTranslate = cur
				this.curPage.pageTranslate = next
				this.nextPage.pageTranslate = [
					`(0,0)`,
					`(${this.windowWidth}px,0)`,
					`(0,${this.windowHeight}px)`
				]
				setTimeout(()=> {
					if (showChapter) {
						uni.showToast({
							title: this.curChapter.chapterName,
							icon: 'none'
						})
					}
					this.showAnimation = true
					this.prePage.pageTranslate = [
						`(${-this.windowWidth}px,0)`,
						`(${-this.windowWidth}px,0)`,
						`(0,${-this.windowHeight}px)`
					]
					this.curPage.pageTranslate = [
						`(0,0)`,
						`(0,0)`,
						`(0,0)`
					]
					this.nextPage.pageTranslate = [
						`(0,0)`,
						`(${this.windowWidth}px,0)`,
						`(0,${this.windowHeight}px)`
					]
				},50)
			},
			
			/**
			* 章节轮换
			**/
			async chapterRotate(type) {
				if (type === 'next') {
					this.preChapter = Object.assign({}, this.curChapter)
					this.curChapter = Object.assign({}, this.nextChapter)
					if (this.curChapter.chapterIndex !== this.directoryList.length - 1) {//最后一章是根据目录列表长度判断
						this.nextChapter = {
							ready: false,
							chapterIndex: this.curChapter.chapterIndex + 1,
							chapterName: this.directoryList[this.curChapter.chapterIndex + 1].name,
						}
						await this.getOneChapter(this.directoryList[this.curChapter.chapterIndex + 1].chapterId)
						this.$set(this.nextChapter, 'text', this.tmpChapter.text)
						this.$set(this.nextChapter, 'canRead', this.tmpChapter.canRead)
						this.calcNextChapter()
					}
					else {
						this.nextChapter = {ready: true,isEnd: true}
					}
				}
				if (type === 'pre') {
					this.nextChapter = Object.assign({}, this.curChapter)
					this.curChapter = Object.assign({}, this.preChapter)
					if (this.curChapter.chapterIndex !== 0) {
						this.preChapter = {
							ready: false,
							chapterIndex: this.curChapter.chapterIndex - 1,
							chapterName: this.directoryList[this.curChapter.chapterIndex - 1].name,
						}
						await this.getOneChapter(this.directoryList[this.curChapter.chapterIndex - 1].chapterId)
						this.$set(this.preChapter, 'text', this.tmpChapter.text)
						this.$set(this.preChapter, 'canRead', this.tmpChapter.canRead)
						this.calcPreChapter()
					}
					else {
						this.preChapter = {ready: true,isCover: true}
					}
				}
			},
			
			
			/**
			* 跳转下一章
			**/
			goNextChapter() {
				if (this.curChapter.chapterIndex === this.directoryList.length - 1) {
					uni.showToast({
						title: '已经是最后一章了',
						icon: 'none'
					})
					return
				}
				if (this.waitForNext || this.waitForPre) {
					return 
				}
				if (this.nextChapter.ready) {
					this.chapterRotate('next')
					this.goToPage(0)
				}
				else {
					uni.showLoading({
						title: '正在准备下一章'
					})
					this.waitForNextChapter = true
				}
				
			},
			
			/**
			* 跳转上一章
			**/
			goPreChapter(page) {
				if (this.curChapter.chapterIndex === 0) {
					uni.showToast({
						title: '这是第一章',
						icon: 'none'
					})
					return
				}
				if (this.waitForNext || this.waitForPre) {
					return 
				}
				if (this.preChapter.ready) {
					this.chapterRotate('pre')
					this.goToPage(0)
				}
				else {
					uni.showLoading({
						title: '正在准备上一章'
					})
					this.waitForPreChapter = true
				}
			},
			
			
			/**
			* 根据页码跳转
			**/
			goToPage(page) {
				
				this.currentPage = page
				this.showAnimation = false
				this.curPage = {
					ready: this.curChapter.ready,
					chapterName: this.curChapter.chapterName,
					text: this.curChapter.text,
					pageNum: this.currentPage,
					totalPage: this.curChapter.totalPage,
					pageTranslate: [
						`(0,0)`,
						`(0,0)`,
						`(0,0)`
					],
					canRead: this.curChapter.canRead
				}
				if (this.currentPage === 0) {
					if (this.preChapter.ready && this.preChapter.isCover) {    //翻至封面了
						this.prePage = {
							ready: true,
							isCover: true,
							pageTranslate: [
								`(${-this.windowWidth}px,0)`,
								`(${-this.windowWidth}px,0)`,
								`(0,${-this.windowHeight}px)`
							]
						}
					}
					else {
						this.prePage = {
							ready: this.preChapter.ready,
							chapterName: this.preChapter.chapterName,
							text: this.preChapter.text,
							pageNum: this.preChapter.totalPage - 1,
							totalPage: this.preChapter.totalPage,
							pageTranslate: [
								`(${-this.windowWidth}px,0)`,
								`(${-this.windowWidth}px,0)`,
								`(0,${-this.windowHeight}px)`
							],
							canRead: this.preChapter.canRead
						}
					}
				}
				else {
					this.prePage = {
						ready: true,
						chapterName: this.curChapter.chapterName,
						text: this.curChapter.text,
						pageNum: this.currentPage - 1,
						totalPage: this.curChapter.totalPage,
						pageTranslate: [
							`(${-this.windowWidth}px,0)`,
							`(${-this.windowWidth}px,0)`,
							`(0,${-this.windowHeight}px)`
						],
						canRead: this.curChapter.canRead
					}
				}
				if (this.currentPage >= this.curChapter.totalPage - 1) {
					if (this.nextChapter.ready && this.nextChapter.isEnd) {    //翻至最后一章了
						this.nextPage = {
							ready: true,
							isEnd: true,
							pageTranslate: [
								`(0,0)`,
								`(${this.windowWidth}px,0)`,
								`(0,${this.windowHeight}px)`
							]
						}
					}
					else {
						this.nextPage = {
							ready: this.nextChapter.ready,
							chapterName: this.nextChapter.chapterName,
							text: this.nextChapter.text,
							pageNum: 0,
							totalPage: this.nextChapter.totalPage,
							pageTranslate: [
								`(0,0)`,
								`(${this.windowWidth}px,0)`,
								`(0,${this.windowHeight}px)`
							],
							canRead: this.nextChapter.canRead
						}
					}
				}
				else {
					this.nextPage = {
						ready: true,
						chapterName: this.curChapter.chapterName,
						text: this.curChapter.text,
						pageNum: this.currentPage + 1,
						totalPage: this.curChapter.totalPage,
						pageTranslate: [
							`(0,0)`,
							`(${this.windowWidth}px,0)`,
							`(0,${this.windowHeight}px)`
						],
						canRead: this.curChapter.canRead
					}
				}
			},
			
			/**
			* 跳转到指定章节
			**/
			async goToChapter(index) {
				
				this.progressTouched = false
				this.closeMenu()
				uni.showLoading({
					title: '加载中'
				})
				await this.getThreeChapter(index)
				this.goToPage(0)
				uni.hideLoading()
				
				console.log(index)
			},
			
			/**
			* 加大字体
			**/
			async bigSize() {
				let progress = this.progress   //记录阅读进度用于调整字体后跳转
				this.fontSize +=2
				uni.setStorageSync('fontSize', this.fontSize)
				this.calcHeight()
				await this.calcCurChapter()
				let page = Math.floor((this.curChapter.totalPage - 1) * progress)
				this.goToPage(page)
				if (this.preChapter.ready && !this.preChapter.isCover) {
					this.preChapter.ready = false
					await this.calcPreChapter()
				}
				if (this.nextChapter.ready && !this.nextChapter.isEnd) {
					this.nextChapter.ready = false
					await this.calcNextChapter()
				}
				
				
				
			},
			
			/**
			* 缩小字体
			**/
			async smallSize() {
				let progress = this.progress
				this.fontSize -= 2
				uni.setStorageSync('fontSize', this.fontSize)
				this.calcHeight()
				await this.calcCurChapter()
				let page = Math.floor((this.curChapter.totalPage - 1) * progress)
				this.goToPage(page)
				if (this.preChapter.ready && !this.preChapter.isCover) {
					this.preChapter.ready = false
					await this.calcPreChapter()
				}
				if (this.nextChapter.ready && !this.nextChapter.isEnd) {
					this.nextChapter.ready = false
					await this.calcNextChapter()
				}
				
			},
			
			/**
			* 切换繁体简体
			**/
			changeFont(type) {
				if (type === 2) {   //切换为繁体
					this.preChapter.text = traditionalized(this.preChapter.text)
					this.curChapter.text = traditionalized(this.curChapter.text)
					this.nextChapter.text = traditionalized(this.nextChapter.text)
					this.prePage.text = traditionalized(this.prePage.text)
					this.curPage.text = traditionalized(this.curPage.text)
					this.nextPage.text = traditionalized(this.nextPage.text)
					this.simplified = 2
					uni.setStorageSync('simplified', 2)
				}
				else {   //切换为简体
					this.preChapter.text = simplized(this.preChapter.text)
					this.curChapter.text = simplized(this.curChapter.text)
					this.nextChapter.text = simplized(this.nextChapter.text)
					this.prePage.text = simplized(this.prePage.text)
					this.curPage.text = simplized(this.curPage.text)
					this.nextPage.text = simplized(this.nextPage.text)
					this.simplified = 1
					uni.setStorageSync('simplified', 1)
				}
			},
			
			/**
			* 改变行距
			**/
			async changeLineHeight(lineHeight) {
				let progress = this.progress
				if (lineHeight === this.lineHeight) {
					return
				}
				else {
					this.lineHeight = lineHeight;
					uni.setStorageSync('lineHeight', this.lineHeight)
					this.calcHeight()
					await this.calcCurChapter()
					let page = Math.floor((this.curChapter.totalPage - 1) * progress)
					this.goToPage(page)
					if (this.preChapter.ready && !this.preChapter.isCover) {
						this.preChapter.ready = false
						await this.calcPreChapter()
					}
					if (this.nextChapter.ready && !this.nextChapter.isEnd) {
						this.nextChapter.ready = false
						await this.calcNextChapter()
					}
					
				}
			},
			
			
			/**
			* 改变翻页方式
			**/
			changeTurnType(turnType) {
				if (turnType === this.turnType) {
					return
				}
				else {
					this.showAnimation = false
					this.turnType = turnType;
					uni.setStorageSync('turnType', this.turnType)
				}
			},
			
			/**
			* 改变背景
			**/
			changeBackground(background) {
				if (background === this.background) {
					return
				}
				else {
					this.background = background;
					uni.setStorageSync('background', this.background)
				}
			},
			
			/**
			* 获取目录
			**/
			getDirectoryList(showLoading) {
				
				/*****************************************/
				/**********    根据需要更改    ************/
				/*****************************************/
				
				if (showLoading) {
					uni.showLoading({
						title: '加载中',
						mask: true
					})
				}
				
				return new Promise((resolve, reject) => {
					// 模拟网络时间
					setTimeout(() => {
						if (showLoading) {
							uni.hideLoading()
						}
						getChapter(this.book_id, (data) => {
							// 生成目录
							for (let i=1;i<=data.data.length;i++) {
								this.directoryList.push({
									index: i+1,
									chapterId: data.data[i-1]['Id'],   //注意：这个chapterId用于获取章节内容而不是index
									name: data.data[i-1]['chaptertitle']
								})
							}
							resolve()
						});
					}, 300)
					
				}).then(() => {}, ()=> {
					
					// 此处是网络连接失败的逻辑
					uni.hideLoading()
					return new Promise((resolve, reject)=> {
						uni.showModal({
							title: '连接失败',
							content: '请检查您的网络状态',
							confirmText: '重试',
							success: async(res) => {
								if (res.confirm) {
									//用户点击了重试
									await this.getDirectoryList(true)
									resolve()
								} else if (res.cancel) {
									//用户点击取消
									this.back()
								}
							}
						})
					})
					
				})
				/*****************************************/
				/*****************************************/
				/*****************************************/
			},
			
			
			/**
			* 获取一章数据
			**/
			getOneChapter(chapterId, showLoading) {
				
				/*****************************************/
				/**********    根据需要更改    ************/
				/*****************************************/
				
				if (showLoading) {
					uni.showLoading({
						title: '加载中',
						mask: true
					})
				}
				
				return new Promise((resolve, reject) => {
					// 模拟网络时间
					setTimeout(() => {
						
						if (showLoading) {
							uni.hideLoading()
						}
						
						// if (chapterId<500) {
							// this.tmpChapter.text = `<p>${chapterId}</p>` + this.text  //模拟数据
							getChapterContent( chapterId, (data) => {
								console.log(data)
								// this.tmpChapter.text = ""
								this.tmpChapter.text = data.data.content;
							});
							// 根据业务实际情况判断该用户是否可阅读,逻辑后端判断
							this.tmpChapter.canRead = true
						// }
						// else {
						// 	this.tmpChapter.text = ''  //注意：不能阅读章节请赋值为空字符串
							
						// 	// 根据业务实际情况判断该用户是否可阅读,逻辑后端判断
						// 	this.tmpChapter.canRead = false
						// }
 						
						
						if (this.simplified === 2) {   //切换为繁体  注意：这里默认数据库中是简体字
							this.tmpChapter.text = traditionalized(this.tmpChapter.text)
						}
						
						resolve()
					}, 300)
				}).then(() => {}, ()=> {
					
					// 此处是网络连接失败的逻辑
					uni.hideLoading()
					return new Promise((resolve, reject)=> {
						uni.showModal({
							title: '连接失败',
							content: '请检查您的网络状态',
							confirmText: '重试',
							success: async(res) => {
								if (res.confirm) {
									//用户点击了重试
									await this.getOneChapter(chapterId, true)
									resolve()
								} else if (res.cancel) {
									//用户点击取消
									this.back()
								}
							}
						})
					})
					
				})
				/*****************************************/
				/*****************************************/
				/*****************************************/
			},
			
			
			/**
			* 获取三章数据
			**/
			async getThreeChapter(index) {
				await this.getOneChapter(this.directoryList[index].chapterId)
				this.curChapter = {
					chapterIndex: index,
					chapterName: this.directoryList[index].name,
					text: this.tmpChapter.text,
					canRead: this.tmpChapter.canRead
				}
				
				if (this.curChapter.chapterIndex !== 0) {
					await this.getOneChapter(this.directoryList[index - 1].chapterId)
					this.preChapter = {
						chapterIndex: index - 1,
						chapterName: this.directoryList[index - 1].name,
						text: this.tmpChapter.text,
						canRead: this.tmpChapter.canRead
					}
				}
				else {
					this.preChapter = {ready: true,isCover: true}
				}
				
				if (this.curChapter.chapterIndex !== this.directoryList.length - 1) {
					await this.getOneChapter(this.directoryList[index + 1].chapterId)
					this.nextChapter = {
						chapterIndex: index + 1,
						chapterName: this.directoryList[index + 1].name,
						text: this.tmpChapter.text,
						canRead: this.tmpChapter.canRead
					}
				}
				else {
					this.nextChapter = {ready: true,isEnd: true}
				}
				await this.calcCurChapter()
				await this.calcPreChapter()
				await this.calcNextChapter()
			},
			
			/**
			* 购买书籍接口
			**/
			buyBook() {
				//在回调中调用this.initPage()刷新本页
				uni.showToast({
					title: '跳转至购买页面，如果未登陆则跳转登陆',
					icon: 'none'
				})
			}
			
			
		}
	}
</script>

<style lang="scss" scoped>
	page{
		position: relative;
		width: 100%;
		height: 100%;
	}
	.hidden{
		opacity: 0;
	}
	.action{
		position: fixed;
		top: 0;
		left: 0;
		width: 100%;
		height: 100%;
		display: flex;
		justify-content: center;
		.item{
			flex: 1;
			height: 100%;
		}
	}
	.container{
		position: fixed;
		top: 0;
		left: 0;
		display: flex;
		flex-flow: column nowrap;
		justify-content: center;
		align-items: center;
		padding: 0px 20px;
		height: 100%;
		width: 100%;
		background-color: #fff;
		overflow: hidden;
		.chapter{
			font-size: 14px;
			color: $minor-text-color;
			height:30px;
			width: 100%;
			line-height: 30px;
		}
		.bottom-bar{
			display: flex;
			justify-content: space-between;
			align-items: center;
			font-size: 14px;
			color: $minor-text-color;
			height:30px;
			width: 100%;
		}
		.content{
			flex: 1 1 auto;
			overflow: hidden;
			.inner-box{
				overflow: hidden;
				.book-inner{
					text-indent: 2em;
					text-align:justify;
				}
			}
		}
		
	}
	.container0{
		background: url(../../static/background1.jpg);
		background-color: #fff;
		background-size: 100% 100%;
	}
	.container1{
		background-color: #000;
	}
	.menu{
		position: fixed;
		top: 0;
		left: 0;
		z-index: 300;
		// transition: all .3s;
		.menu-top{
			position: absolute;
			left: 0;
			width: 100%;
			background-color: #333;
			transition: top .3s;
			.head{
				position: relative;
				display: flex;
				justify-content: center;
				align-items: center;
				height: 40px;
				width: 100%;
				line-height: 40px;
				color: #fff;
			}
			.back{
				position: absolute;
				top: 0;
				left: 10px;
			}
		}
		.directory{
			position: absolute;
			top: 0;
			display: flex;
			flex-flow: column;
			width: 600rpx;
			height: 100%;
			transition: left .1s;
			.bookname{
				padding: 20px 0 20px 10px;
				height: 60px;
				font-size: 18px;
			}
			.directory-listItem{
				display: flex;
				align-items: center;
				padding-left: 10px;
				height: 40px;
				font-size: 14px;
				border-bottom: #eee solid 1px;
			}
			.active{
				color: red
			}
		}
		.menu-bottom{
			position: absolute;
			left: 0;
			width: 100%;
			background-color: #333;
			transition: bottom .3s;
			color: #fff;
			.show-chapter{
				position: absolute;
				left: 50%;
				top: 0;
				transform: translate(-50%, -110%);
				padding: 5px 10px;
				line-height: 20px;
				border-radius: 10rpx;
				font-size: 13px;
				background-color: #333;
			}
			.progress-box{
				display: flex;
				justify-content: space-between;
				align-items: center;
				padding: 0 20px;
				height: 50px;
				width: 100%;
				font-size: 15px;
			}
			.items-box{
				display: flex;
				justify-content: space-around;
				align-items: center;
				height: 80px;
				width: 100%;
				.item-box{
					display: flex;
					flex-flow: column;
					justify-content: center;
					align-items: center;
					height: 100%;
				}
			}
		}
		.setting{
			position: absolute;
			left: 0;
			display: flex;
			flex-direction: column;
			justify-content: space-around;
			padding: 10px 20px;
			width: 100%;
			color: #fff;
			background-color: #333;
			transition: bottom .3s;
			.item{
				display: flex;
				align-items: center;
				height: 70px;
				.item-name{
					padding: 10px;
					color: #fff;
					font-size: 14px;
				}
				.icon{
					margin-right: 10px;
					padding: 5px 20px;
					font-size: 15px;
					height: 32px;
					line-height: 20px;
					width: auto;
					text-align: center;
					border-radius: 20px;
					border: #fff solid 1px;
				}
				.type-setting{
					display: flex;
					flex-direction: column;
					justify-content: space-around;
					align-items: center;
					margin-right: 10px;
					padding: 5px;
					height: 30px;
					width: 30px;
					border-radius: 5px;
					border: #fff solid 1px;
					.line{
						width: 100%;
						border-bottom: #fff solid 1px; 
					}
					.lineActive{
						width: 100%;
						border-bottom: #FF9900 solid 1px; 
					}
				}
				.active{
					color: #FF9900;
					border: #FF9900 solid 1px;
				}
			}
		}
	}
	.cover{
		image{
			height: 400rpx;
			width: 300rpx;
			background-color: #eee;
		}
	}
</style>